import java.util.*;

/**
 * @author wuwenfa
 */
public class Main {

    public static void main(String[] args) {
        System.out.println(one(2));
    }
    
    public static String one(Integer i) {
        if(Objects.isNull(i)){
            throw new IllegalArgumentException("参数异常");
        }
        for (MouthEnum mouthEnum : MouthEnum.values()) {
            if (Objects.equals(mouthEnum.value, i)) {
                return mouthEnum.desc;
            }
        }
        throw new IllegalArgumentException("参数异常");
    }
}
